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ROUGH SET OVER DUAL-UNIVERSES IN FUZZY APPROXIMATION SPACE

Publish place: Iranian Journal of Fuzzy Systems، Vol: 9، Issue: 3
Publish Year: 1391
نوع سند: مقاله ژورنالی
زبان: English
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لینک ثابت به این Paper:
https://civilica.com/doc/1476433

شناسه ملی سند علمی:

JR_IJFS-9-3_006

تاریخ نمایه سازی: 7 تیر 1401

Abstract:

To tackle the problem with inexact, uncertainty and vague knowl- edge, constructive method is utilized to formulate lower and upper approx- imation sets. Rough set model over dual-universes in fuzzy approximation space is constructed. In this paper, we introduce the concept of rough set over dual-universes in fuzzy approximation space by means of cut set. Then, we discuss properties of rough set over dual-universes in fuzzy approximation space from two viewpoints: approximation operators and cut set of fuzzy set. Reduction of attributes and rules extraction of rough set over dual-universes in fuzzy approximation space are presented. Finally, an example of disease diagnoses expert system illustrates the possibility and eciency of rough set over dual-universes in fuzzy approximation space.

Authors

Ruixia Yan

School of Management, Shanghai University of Engineering Science, Shanghai ۲۰۱۶۲۰, P. R. China and Glorious Sun School of Business Administration, Donghua Universty, Shanghai ۲۰۰۰۵۱, P. R.China

Jianguo Zheng

Glorious Sun School of Business Administration, Donghua Univer- sity, Shanghai ۲۰۰۰۵۱, P. R.China

Jinliang Liu

Department of Applied Mathematics, Nanjing University of Finance and Economics, Nanjing, ۲۱۰۰۴۶, P.R.China

Chaoyong Qin

College of Mathematics and Information Sciences of Guangxi Univer- sity, Naning ۵۳۰۰۰۴, P. R. China and Glorious Sun School of Business Administration, Donghua Universty, Shanghai ۲۰۰۰۵۱, P. R.China

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